<p>[a false reference]: must be escaped</p>
<p> - a list item</p>
<p>*</p>
<p>~</p>
<p>|</p>
<p>[a faux](link)</p>
<p># at start</p>
<p>in the # middle is ok</p>
<p>> at start</p>
<p>in the middle > is ok</p>
<p>---</p>
<p>1. must be escaped</p>
<p>but. this should not</p>
<p>. nor this</p>
<p>or this.</p>
<p>    4 spaces at the beginning of line are removed</p>
<p>multiple spaces    are colapsed to 1</p>
